| Conditions | 4 | 
| Paths | 3 | 
| Total Lines | 16 | 
| Code Lines | 10 | 
| Lines | 0 | 
| Ratio | 0 % | 
| Tests | 11 | 
| CRAP Score | 4 | 
| Changes | 1 | ||
| Bugs | 0 | Features | 0 | 
| 1 | <?php namespace Arcanedev\Composer\Entities\PackageTraits; | ||
| 30 | 93 | protected function mergeScripts(RootPackageInterface $root, PluginState $state) | |
| 31 |     { | ||
| 32 | 93 | $scripts = $this->getPackage()->getScripts(); | |
| 33 | |||
| 34 | 93 | if ( ! $state->shouldMergeScripts() || empty($scripts)) | |
| 35 | 85 | return; | |
| 36 | |||
| 37 | 12 | $rootScripts = $root->getScripts(); | |
| 38 | |||
| 39 | 12 | $scripts = $state->replaceDuplicateLinks() | |
| 40 | 6 | ? array_merge($rootScripts, $scripts) | |
| 41 | 12 | : array_merge($scripts, $rootScripts); | |
| 42 | |||
| 43 | 12 | self::unwrapIfNeeded($root, 'setScripts') | |
|  | |||
| 44 | 12 | ->setScripts($scripts); | |
| 45 | 12 | } | |
| 46 | } | ||
| 47 | 
Let’s take a look at an example:
In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break.
Available Fixes
Change the type-hint for the parameter:
Add an additional type-check:
Add the method to the interface: